PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

FIG 120 SZ 1/2 INValve,globe

William Powell Company, the Dba Powell Valve Div the Starflo Corporation · NSN 4820-01-262-7500 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-262-7500 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-262-7500. Primary manufacturer part number: FIG 120 SZ 1/2 IN.
Features
  • Valve,globe — FSC 4820
  • Connection Type: THREADED INTERNAL PIPE ALL ENDS
  • Thread Direction: RIGHT-HAND ALL ENDS
  • Bonnet Type: INSIDE SCREW
  • Features Provided: BONNET PACKING
  • Material Document and Classification: ASTM B371 ALLOY 694 ASSN STD SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE
  • Media for Which Designed: STEAM FIRST RESPONSE
  • Maximum Operating Temp: 550.0 FAHRENHEIT SINGLE RESPONSE DEGF
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Copper Alloy 922 Body construction
General Description

The Valve,globe, cataloged under National Stock Number 4820-01-262-7500, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is William Powell Company, the Dba Powell Valve Div the Starflo Corporation. Government technical data includes 23 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4820-01-262-7500
Primary Part NumberFIG 120 SZ 1/2 IN
Item NameValve,globe
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerWilliam Powell Company, the Dba Powell Valve Div the Starflo Corporation
StatusCANCELLED
Connection TypeTHREADED INTERNAL PIPE ALL ENDS
Thread DirectionRIGHT-HAND ALL ENDS
Bonnet TypeINSIDE SCREW
Features ProvidedBONNET PACKING
Material Document and ClassificationASTM B371 ALLOY 694 ASSN STD SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE
Media for Which DesignedSTEAM FIRST RESPONSE
Maximum Operating Temp550.0 FAHRENHEIT SINGLE RESPONSE DEGF
Bonnet Attachment MethodUNION
Media for Which DesignedWATER-OIL-GAS SECOND RESPONSE
MaterialCOPPER ALLOY 922 BODY
Connection StylePLAIN,OPTIONAL END(PIPE) ALL ENDS
Valve Operation MethodMANUAL
Style DesignatorSTRAIGHT THRU
Material Document and ClassificationASTM B61 ASSN STD SINGLE MATERIAL RESPONSE BODY
Flow Control DeviceDISK
MaterialCOPPER ALLOY 694 STEM
Nominal Thread Size0.500 INCHES ALL ENDS IN
Material Document and ClassificationASTM B371 ALLOY 694 ASSN STD SINGLE MATERIAL RESPONSE STEM
Supplementary FeaturesTHIS ITEM HAS BEEN REVIEWED FOR ASBESTOS MATERIAL;THE CURRENT APPROVED SOURCES; 41422 HAVE INDICATED THEIR PART NUMBER CONTAINED ASBESTOS PRIOR TO 1984,THEY CONTINUE TO MANUFACTURE THE SAME PART NUMBER WITHOUT ASBESTOS MATERIAL AFTER 1984
MaterialCOPPER ALLOY 694 FLOW CONTROL DEVICE
Operating Pressure300.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS
Thread Series DesignatorNPT ALL ENDS
Operating Pressure1000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE LBS
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 5
3110-00-529-9480 INTERCHANGEABLE
Bearing,ball,annular
5930-00-581-60379000-S6202-74290 TYPE S2JR10-3 INTERCHANGEABLE
Switch,rotary
Naval Ship Systems Command
6150-00-922-102826872 INTERCHANGEABLE
Cable Assembly,power,electrical
Grimes Aerospace Company
1680-01-095-729926872 INTERCHANGEABLE
Seat,module,pilot
Eaton Aerospace Llc
6510-01-599-6307HHWSKX INTERCHANGEABLE
Dressing,chest Seal Wound
H&h Medical Corporation Dba H & H Medical Div None
Cross-Reference Index
Part NumberManufacturer
26872 Clayton Manufacturing Company (USA)
FIG 120 SZ 1/2 IN PRIMARY William Powell Company, the Dba Powell Valve Div the Starflo Corporation (USA)
FIG 120 William Powell Company, the Dba Powell Valve Div the Starflo Corporation (USA)
FIG120 1/2IN William Powell Company, the Dba Powell Valve Div the Starflo Corporation (USA)
R-10877 FIG 3-21 Clayton Manufacturing Company (USA)
Related Parts
3110-00-529-9480INTERCHANGEABLE
BEARING,BALL,ANNULAR
5930-00-581-6037INTERCHANGEABLE
SWITCH,ROTARY
9000-S6202-74290 TYPE S2JR10-3
6150-00-922-1028INTERCHANGEABLE
CABLE ASSEMBLY,POWER,ELECTRICAL
26872
1680-01-095-7299INTERCHANGEABLE
SEAT,MODULE,PILOT
26872
6510-01-599-6307INTERCHANGEABLE
DRESSING,CHEST SEAL WOUND
HHWSKX

Frequently Asked Questions

What is NSN 4820-01-262-7500?

NSN 4820-01-262-7500 is a Valve,globe, manufactured by William Powell Company, the Dba Powell Valve Div the Starflo Corporation, classified under FSC 4820 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4820-01-262-7500?

NSN 4820-01-262-7500 has 5 cross-referenced part numbers: 26872 (Clayton Manufacturing Company), FIG 120 SZ 1/2 IN (William Powell Company, the Dba Powell Valve Div the Starflo Corporation), FIG 120 (William Powell Company, the Dba Powell Valve Div the Starflo Corporation), FIG120 1/2IN (William Powell Company, the Dba Powell Valve Div the Starflo Corporation), R-10877 FIG 3-21 (Clayton Manufacturing Company).

What NSN replaces 4820-01-262-7500?

There are 5 known substitutes for 4820-01-262-7500: 3110-00-529-9480, 5930-00-581-6037, 6150-00-922-1028 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of FIG 120 SZ 1/2 IN?

Key specifications for FIG 120 SZ 1/2 IN: Connection Type: THREADED INTERNAL PIPE ALL ENDS; Thread Direction: RIGHT-HAND ALL ENDS; Bonnet Type: INSIDE SCREW; Features Provided: BONNET PACKING. 24 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4820-01-262-7500 still in active supply?

NSN 4820-01-262-7500 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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